Our Team
JONATHAN HAAG - President
Tungsten Associates was founded by Jonathan Haag, who brings over twenty years of experience in engineering and construction projects. Mr. Haag has advised clients throughout the execution of active projects and provided expert testimony and analysis in related disputes.
Mr. Haag understands projects because he has lived them – not just from the comfort of an office, but in dusty trailers, dirty boots, and sweaty hard hats. He leverages this background to offer credible, objective, and concise analysis and guidance whether in the field, at a boardroom table, or during testimony.
His project experience spans the globe, with significant involvement in North and South America, Africa, Central Asia, and the Middle East. Mr. Haag's expertise covers numerous industries, including infrastructure, oil and gas, mining, renewable and conventional energy, and commercial and residential construction. He has provided expert witness testimony in ICC and ad hoc arbitrations and has supported clients in various negotiations, mediations, and dispute review board proceedings.
Mr. Haag holds a degree in Building Construction from the Georgia Institute of Technology, where he also contributes to the advisory board for the School of Building Construction. He is certified as a Planning and Scheduling Professional, Certified Cost Professional, and Project Management Professional. Since 2019, Mr. Haag has been recognized in the Lexology Index (formerly Who’s Who Legal) for his expertise in construction, mining, and energy projects.
ANDREW KREMER - SENIOR PARTNER
Andrew Kremer is a Senior Partner at Tungsten Associates. He previously held executive roles at large, international engineering and construction firms and now provides expert testimony and advice to various project stakeholders.
With over 40 years of experience in the delivery of large capital projects, Mr. Kremer's career has spanned roles from civil field engineer to president of operations. He has collaborated with both owners and contractors involved in the design and construction of capital projects worldwide, with involvement in projects across the Americas, Asia, Australia, and Europe. His expertise encompasses numerous large-scale projects in the mining and minerals, infrastructure, specialty chemical, refining, petroleum and petrochemical, and power industries.
Mr. Kremer has provided expert testimony on a range of topics related to the standard of care for executing engineering and construction projects. His areas of focus include front-end engineering and design (FEED), detailed engineering, procurement, modularization, project management, and construction management, among others.
ray wu - senior director
Ray Wu is a Senior Director at Tungsten Associates, and brings a diverse background in geotechnical engineering, project development, and advising clients engaged in engineering and construction projects and related disputes.
Mr. Wu has worked with clients involved in projects throughout the Americas and in the Middle East, and has experience across various industry sectors, including infrastructure, oil and gas, mining, renewable and conventional energy, and commercial and residential construction. He has supported clients involved in a variety of dispute resolution proceedings, including ICC and ad hoc arbitrations, state court trials, and mediations.
Prior to joining Tungsten Associates, Mr. Wu worked as an engineering consultant at a non-profit organization, where he managed projects and provided technical consulting on clean transportation initiatives. His work included deploying zero-emission technologies, planning fleet transitions, and reporting on key performance indicators.
Additionally, Mr. Wu worked as a geotechnical engineer and civil designer at an international engineering and consulting firm, where he conducted engineering analyses and construction oversight on a range of projects related to geotechnical and environmental services, as well as the installation and monitoring of geotechnical instrumentation and the design and construction of waste containment facility systems.
Mr. Wu earned both Bachelor and Master of Science degrees in Geological Engineering from the University of Wisconsin-Madison and is a registered professional engineer in the State of Georgia.